<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
	<style type="text/css">
		html,
    body {
			width: 100%;
			height: 100%;
			margin: 0;
			padding: 0;
    }
    #map_container {
			width: 100%;
			height: 100%;
			margin: 0;
    }
	</style>
	<script type="text/javascript" src="https://api.map.baidu.com/api?type=webgl&v=1.0&ak=9Hl6gsN9gRvke7QGtEb7R6ZikNDGhakD"></script>
	<script src="https://mapv.baidu.com/gl/examples/static/common.js"></script>
	<script src="https://mapv.baidu.com/build/mapv.js"></script>
	<script src="https://code.bdstatic.com/npm/mapvgl@1.0.0-beta.54/dist/mapvgl.min.js"></script>
	<script src="https://code.bdstatic.com/npm/mapvgl@1.0.0-beta.54/dist/mapvgl.threelayers.min.js"></script>
	<title>地图展示</title>
</head>
<body>
	<div id="map_container"></div>
	<script type="text/javascript">
		var map = initMap({
			tilt: 60,
			heading: 0,
			center: [103.438656,25.753594],
			zoom: 6,
			style: purpleStyle
		});
		setData(initData());
		function initData() {
			var data = [];
			var citys = [
				'北京', '天津', '上海', '重庆', '石家庄', '太原', '呼和浩特', '哈尔滨', '长春',
				'沈阳', '济南', '南京', '合肥', '杭州', '南昌', '福州', '郑州', '武汉', '长沙', '广州',
				'南宁', '西安', '银川', '兰州', '西宁', '乌鲁木齐', '成都', '贵阳', '昆明', '拉萨', '海口'
			];
	    var randomCount = 100; // 模拟的飞线的数量
   		var curve = new mapvgl.BezierCurve();
	    // 构造数据
  	  while (randomCount--) {
        var startPoint = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length, 10)]);
        var endPoint = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length, 10)])
        curve.setOptions({
					start: [startPoint.lng, startPoint.lat],
					end: [endPoint.lng, endPoint.lat]
        });
        var curveModelData = curve.getPoints();
        data.push({
					geometry: {
						type: 'LineString',
						coordinates: curveModelData
					},
					properties: {
						count: Math.random()
					}
        });
    	}
			return data;
		}
		function setData(data) {
			var view = new mapvgl.View({
        map: map
    	});

			var flylineLayer = new mapvgl.FlyLineLayer({
        style: 'chaos',
        step: 0.3,
        color: 'rgba(33, 242, 214, 0.3)',
        textureColor: function (data) {
            return data.properties.count > 0.5 ? '#ff0000' : '#56ccdd';
        },
        textureWidth: 20,
        textureLength: 10
    	});
    	view.addLayer(flylineLayer);
    	flylineLayer.setData(data);
		}
	</script>	
</body>
</html>